Technical data

51
3. nts if
dicate below whether each current will
increase, decrease or stay the same
will . I will
________________________. I
6
will _______________________ .
.
I will _______________________.
l ________________________ I _______________________
will pass through the unchanged parallel branch.
4. e all of the circuit
voltage drops and curren
= _____________ ____________
= _____________ ____________
= _______________ = ____________
.
______.
5. original 10k used
s and w
easurements as needed to verify or correct your
_
_
_
ent
____
a
Predict what will happen to all the circuit curre R
6
were changed to a 47k resistor.
In .
________________________ _______________________. I
1 5
I
2
will
will ________________________I
3 7
I
4
wil .
T
will .
creasing the resistance value of any component in a series-parallel combination circuit will In
ause the total current to ________________________. This is true with not only c
ombination circuits but for any circuit. It is possible for component currents to increase in ac
parallel circuit because of the changed resistance value. This is due to the fact that a larger
percentage of the total current
Verify your predictions in step 3 by replacing
R
6
with a 47k resistor. Measur
ts using the same applied voltage used in step 2.
V
1
___________. I
1
= ___________.
V
2
___________. I
2
= ___________.
V
3
_________. I
3
___________.
V
4
= ________________________. I
4
= _______________________.
V
5
= ________________________. I
5
= _______________________
V
6
= ________________________. I
6
= _______________________.
V
7
= ________________________. I
7
= _______________________.
V
A
= ________________________. I
T
= _________________
Do these measurements agree with the predictions in step 3? ___________________
hange R
6
from the 47k to a 3.3k resistor. This resistor is less than theC
in step 2. Predict which currents will increa e hich ones will decrease. Record your
predictions below. After predicting, make m
predictions.
Which currents will increase?
___________________________________________
_______________________________________________________________
Which currents will decrease? ___________________________________________
_______________________________________________________________
Decreasing the resistance value of any compon in a series-parallel combination circuit will
cause the total current to ______________ ______. This is true with not only
combination circuits but for any circuit. It is possible for a component current to decrease in
parallel circuit when the total circuit current is increased. This is because a smaller percentage
of the total current will pass through the unchanged parallel branch.